What can I do if there is white noise in the render?

[Jonathan Nunez]

I noticed that my render has some small white dots on the wheels part…I didn’t see this addressed thru the lesson, so I wondered what could be done? 

[Shawn Blanch]

Those are call fireflies. 

There is a cool addition to cycles render where you can add a denoiser to the compositer (it’s working in blender 2.82a I know for sure). You just enable the “use nodes” one the compositer workspace and then add a DeNoise node after the render and then connect that to the output. It will remove your fireflies if you just want a quick and dirty.

The new lighting course by@jlampel is probably worth looking into as well.

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